html, body {
    height: 100%;
    margin:0;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header_logo{
    display: flex;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

nav {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 1em 0;
    background-color: #ffc0cb;
}

nav a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
    transition: background-color 0.3s, color 0.3s;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

nav a:hover {
    background-color: #ffb6c1;
    color: #fff;
}

.summary_table{
    background-color: #ffc0cb;
    border-collapse: collapse;
    width: 80%;
    max-width: 800px;
    margin: 2em auto;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border-radius: 10px;
    overflow: hidden;
}

.summary_table th {
    background-color: #ffb6c1;
    color: #333;
    padding: 12px 20px;
    text-align: center;
    font-weight: bold;
    font-size: 1em;
}

.summary_table td {
    padding: 12px 20px;
    text-align: center;
    border-top: 1px solid #ffe4e1;
    font-size: 0.95em;
    color: #333;
}

.summary_table tr:nth-child(even) {
    background-color: #ffe4e1;
}

.summary_table tr:hover {
    background-color: #d579ff;
    transition: 0.3s;
}

table {
    column-span: 50px;
    row-gap: 5px;
}

td {
    justify-content: center;
}

main {
    display:flex;
    justify-content: center;
    align-items: center;
    flex:1;
}

.footer_wrapper{
    padding: 1em;
    background-color: pink;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}